[hambil]

Originally Posted by username12

Easy install, though I can't for the life of me figure out how the percentages work.

Let me give an example. Let's say you openned your board on Dec 20th. You current post count average would be:

(January 1st - 19th + February 1st - 19th + March 1st - 19th) / 3

Let's use some numbers to make it easier:
(50 + 210 + 315) / 3 = 191.67

Okay, so we have your boards "Month to date" post count average, now compare it to this month: April 1st - 19th - let's say we have 392 posts so far this month.
(392 / 191.67) * 100 = 205.23
Which we round to 205.

This number is the percentage of the orginial, not the percentage increase. In other words, 392 is 205% of 191, but we don't have a 205% increase, because 191 represents 100%. So, we do a tiny bit more math.
205 - 100 = 105%
Your board has an increase of 105% in posts over the average this month so far!

That's how it works.